Diversity among Hamilton Conifers. (In: Regional and paleontology of Upper Paleozoic Hamilton Quarry area in Southeastern Kansas. G.Mapes and R.H Mapes, editors)
Reference:
Mapes,G. et al. (1988)
Diversity among Hamilton Conifers. (In: Regional and paleontology of Upper Paleozoic Hamilton Quarry area in Southeastern Kansas. G.Mapes and R.H Mapes, editors) Kansas Geological Survey,Guidebook Series
# 6 P. 225- 244